Zobrazeno 1 - 10
of 585
pro vyhledávání: '"Lippmaa, M."'
Publikováno v:
In Materials Today Physics January 2021 16
Autor:
Takahashi, R., Ohkubo, I., Yamauchi, K., Kitamura, M., Sakurai, Y., Oshima, M., Oguchi, T., Cho, Y., Lippmaa, M.
Publikováno v:
Physical Review B (2015)
We report on theoretical and experimental investigation of A-site driven ferroelectricity in ferromagnetic La2NiMnO6 thin films grown on SrTiO3 substrates. Structural analysis and density functional theory calculations show that epitaxial strain stre
Externí odkaz:
http://arxiv.org/abs/1504.04905
Autor:
Yoshimatsu, K., Wadati, H., Sakai, E., Harada, T., Takahashi, Y., Harano, T., Shibata, G., Ishigami, K., Kadono, T., Koide, T., Sugiyama, T., Ikenaga, E., Kumigashira, H., Lippmaa, M., Oshima, M., Fujimori, A.
Publikováno v:
Phys. Rev. B 88, 174423 (2013)
We have investigated the electronic and magnetic properties of Co-doped Pr0.8Ca0.2MnO3 thin films using various spectroscopic techniques. X-ray absorption and hard x-ray photoemission spectroscopy revealed that the substituted Co ions are in the diva
Externí odkaz:
http://arxiv.org/abs/1311.2652
Publikováno v:
Physical Review B, 86, 144105 (2012)
We have investigated the spontaneous polarization in Fe$_3$O$_4$ thin films by using dynamic and static pyroelectric measurements. The magnetic and dielectric behavior of Fe$_3$O$_4$ thin films grown on Nb:SrTiO$_3$(001) substrates was consistent wit
Externí odkaz:
http://arxiv.org/abs/1209.4735
Autor:
Harada, T., Ohkubo, I., Lippmaa, M., Sakurai, Y., Matsumoto, Y., Muto, S., Koinuma, H., Oshima, M.
Publikováno v:
Phys. Rev. Lett. 109, 076602 (2012)
Efficient injection of spin-polarized current into a semiconductor is a basic prerequisite for building semiconductor-based spintronic devices. Here, we use inelastic electron tunneling spectroscopy to show that the efficiency of spin-filter-type spi
Externí odkaz:
http://arxiv.org/abs/1207.5372
Ferromagnetic insulator Pr0.8Ca0.2Mn1-yCoyO3 (0 <= y <= 0.7) thin films were epitaxially grown on (LaAlO3)0.3-(SrAl0.5Ta0.5O3)0.7 (100) substrates by pulsed laser deposition. To probe the ferromagnetic insulator state of hole-doped manganites, the Co
Externí odkaz:
http://arxiv.org/abs/1009.1524
Autor:
Takizawa, M., Minohara, M., Kumigashira, H., Toyota, D., Oshima, M., Wadati, H., Yoshida, T., Fujimori, A., Lippmaa, M., Kawasaki, M., Koinuma, H., Sordi, G., Rozenberg, M.
Publikováno v:
Phys. Rev. B 80, 235104 (2009)
We have performed a detailed angel-resolved photoemission spectroscopy study of in-situ prepared SrVO3 thin films. Naturally capped by a ``transparent'' protective layer, contributions from surface states centered at ~ -1.5 eV are dramatically reduce
Externí odkaz:
http://arxiv.org/abs/0806.2231
Autor:
Wadati, H., Maniwa, A., Chikamatsu, A., Ohkubo, I., Kumigashira, H., Oshima, M., Fujimori, A., Lippmaa, M., Kawasaki, M., Koinuma, H.
Publikováno v:
Phys. Rev. Lett. 100, 026402 (2008)
We have performed an {\it in-situ} photoemission study of Pr_{1-x}Ca_xMnO_3 (PCMO) thin films grown on LaAlO_3 (001) substrates and observed the effect of epitaxial strain on the electronic structure. We found that the chemical potential shifted mono
Externí odkaz:
http://arxiv.org/abs/0708.1387
Autor:
Chikamatsu, A., Wadati, H., Kumigashira, H., Oshima, M., Fujimori, A., Lippmaa, M., Ono, K., Kawasaki, M., Koinuma, H.
Publikováno v:
Phys. Rev. B 76, 201103(R) (2007).
We report the first observation of changes in the electronic structure of La$_{1-x}$Sr$_{x}$MnO$_{3}$ (LSMO) across the filling-control metal-insulator (MI) transition by means of in situ angle-resolved photoemission spectroscopy (ARPES) of epitaxial
Externí odkaz:
http://arxiv.org/abs/0705.0621